Troubleshooting - Hitachi L42X02A Service Manual

TROUBLESHOOTING

SYMPTOM: NO WORK/LED IS OFF
No work / LED is off
Check if power
connection is normal
Yes
Check if voltage of
Power PCB pin 5 & 9 &
11 of CN1 is normal
Yes
Check if voltage of pin1
of CNE1 is normal
Yes
Replace RMC PCB
No
Replace power connection
No
Replace Power PCB
No
Replace Main PCB
40